diff options
Diffstat (limited to 'extras')
| -rw-r--r-- | extras/glusterfs-volgen | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/extras/glusterfs-volgen b/extras/glusterfs-volgen index 178003cdc09..5dcb9e3cea5 100644 --- a/extras/glusterfs-volgen +++ b/extras/glusterfs-volgen @@ -10,19 +10,31 @@ num_stripe = 4 cache_size = "1GB" def print_usage (name): - print name, " --name <volume-name> " - print " [--raid 0|1|10] " - print " [--transport tcp|ib-verbs] " - print " [--cache-size <cache-size>] " - print " [--port <port>] " - print " [--export-directory <export-dir>] " - print " [--num-stripe n] " - print " [--num-replica m] " - print " [--usage] " - print " [--upgrade] " - print " host1 host2 ... hostN " + spaces = ' ' * (len(name) + 1) + print name, " --name <volume-name>" + print "%s[--raid 0|1|10]" % spaces + print "%s[--transport tcp|ib-verbs]" % spaces + print "%s[--cache-size <cache-size>]" % spaces + print "%s[--port <port>]" % spaces + print "%s[--export-directory <export-dir>]" % spaces + print "%s[--num-stripe n]" % spaces + print "%s[--num-replica m]" % spaces + print "%s[--usage, --help]" % spaces + print "%s[--upgrade]" % spaces + print "%s[--version]" % spaces + print "%sserver1 server2 ... serverN" % spaces return +def print_version (version): + print "glusterfs-volgen %s: A tool to generate volume files for GlusterFS." % version + print "Copyright (C) 2009 Gluster, Inc. <http://www.gluster.com>" + print """License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law.""" + +def print_error (msg): + print "%s: %s" % (sys.argv[0], msg) + def setup_env (): # os.system ("mkdir -p "confdir"/glusterfs") # os.system ("touch "confdir"/glusterfs/19993") @@ -54,19 +66,19 @@ def print_mount_volume (mount_fd, servers): # Make sure proper RAID type is given if raid_type == 1: if (num_servers % num_replica) != 0: - print "raid type (%d) and number of of hosts (%d) not appropriate" % (raid_type, num_servers) + print_error ("raid type (%d) and number of of hosts (%d) not appropriate" % (raid_type, num_servers)) sys.exit (1) num_stripe = 1 if raid_type == 0: if (num_servers % num_stripe) != 0: - print "raid type (%d) and number of of hosts (%d) not appropriate" % (raid_type, num_servers) + print_error ("raid type (%d) and number of of hosts (%d) not appropriate" % (raid_type, num_servers)) sys.exit (1) num_replica = 1 if raid_type == 10: if (num_servers % (num_replica * num_stripe)) != 0: - print "raid type (%d) and number of of hosts (%d) not appropriate" % (raid_type, num_servers) + print_error ("raid type (%d) and number of of hosts (%d) not appropriate" % (raid_type, num_servers)) sys.exit (1) cmdline = string.join (sys.argv, ' ') @@ -233,8 +245,8 @@ def upgrade_mount_volume (volume_path, new_servers): try: tmp_read_fd = file (volume_path, "r") - except: - print "open failed" + except IOError, (errno, strerror): + print_error ("open of %s failed: %s" % (volume_path, strerror)) sys.exit (1) volume_file_buf = tmp_read_fd.readlines () @@ -265,17 +277,18 @@ def upgrade_mount_volume (volume_path, new_servers): tmp_servers = [] for server in servers: if server in tmp_servers: - print "duplicate entry in server list (%s).. exiting" % server + print_error ("duplicate entry in server list (%s)." % server) sys.exit (1) tmp_servers.append (server); try: tmp_fd = file (volume_path, "w") - except: - print "open failed" + except IOError, (errno, strerror): + print_error ("open of %s failed: %s" % (volume_path, strerror)) sys.exit (1) print_mount_volume (tmp_fd, servers) + print "Wrote new mount file %s" % volume_path return @@ -294,6 +307,10 @@ def main (): volume_name = None export_dir = None + if len(sys.argv) == 1: + print_usage (sys.argv[0]) + sys.exit (1) + # TODO: take this variable from --prefix option. confdir = "/usr/local/etc/glusterfs" @@ -304,7 +321,7 @@ def main (): mount_volume_path="/dev/stdout" try: - (opt, args) = getopt.getopt (sys.argv[1:], "r:t:c:p:d:n:o:uh", + (opt, args) = getopt.getopt (sys.argv[1:], "r:t:c:p:d:n:o:v:uh", ["raid=", "transport=", "cache-size=", @@ -316,6 +333,7 @@ def main (): "conf-dir=", "upgrade", "usage", + "version", "help"]) except getopt.GetoptError, (msg, opt): @@ -354,18 +372,25 @@ def main (): if o == '-r' or o == '--raid': if (val != "1" and val != "0" and val != "10"): - print "--raid: option " + val + " is not valid raid type" + print_error ("--raid: '" + val + "' is not a valid RAID type.") + print_usage (sys.argv[0]) sys.exit (1) raid_type = int (val) if o == '-t' or o == '--transport': if (val != "tcp" and val != "ib-verbs"): - print "--transport: option " + val + " is not valid transport type" + print_error ("--transport: '" + val + "' is not a valid transport type.") + print_usage (sys.argv[0]) sys.exit (1) transport_type = val + if o == '-v' or o == '--version': + print_version (version_num) + sys.exit (0) + if main_name is None: - print "'--name' option not given, exiting" + print_error ("'--name' not specified.") + print_usage (sys.argv[0]) sys.exit (1) setup_env() @@ -375,7 +400,8 @@ def main (): num_servers = len (args) if num_servers is 0: - print "no servers given, exiting" + print_error ("no servers specified.") + print_usage (sys.argv[0]) sys.exit (1) if needs_upgrade is 1: @@ -383,24 +409,25 @@ def main (): sys.exit (0) if export_dir is None: - print "'--export-directory' option not given, exiting" + print_error ("'--export-directory' not specified.") sys.exit (1) try: exp_fd = file (export_volume_path, "w") - except: - print "open failed" + except IOError, (errno, strerror): + print_error ("open of %s failed: %s" % (export_volume_path, strerror)) sys.exit (1) try: mount_fd = file (mount_volume_path, "w") - except: - print "open failed" + except IOError, (errno, strerror): + print_error ("open of %s failed: %s" % (mount_volume_path, strerror)) sys.exit (1) - print "printing volume files" print_export_volume (exp_fd, export_dir) + print "Wrote export file %s" % export_volume_path print_mount_volume (mount_fd, args) + print "Wrote mount file %s" % mount_volume_path return main () |